import java.util.Scanner;
public class Elaina_10_6_ti1 {
    private int max_edge;
    private int edge1;
    private int edge2;
    public Elaina_10_6_ti1(int a,int b,int c)
    {
        if(a>b)
        {
            max_edge = a;
            edge1 = b;
        }
        else
        {
            max_edge = b;
            edge1 = a;
        }
        if(c > max_edge)
        {
            edge2 = max_edge;
            max_edge = c;
        }
        else edge2 = c;
    }
    public boolean isValid()
    {
        return (edge1 + edge2 > max_edge);
    }
    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        Elaina_10_6_ti1 abc = new Elaina_10_6_ti1(a,b,c);
        if(abc.isValid())
        {
            System.out.println("能组成合法的三角形");
        }
        else
        {
            System.out.println("不能组成合法的三角形");
        }
    }
}
